Scientists haven't been able to reach the bottom.
Inquisitr on MSN
The deepest blue hole has been found — but experts don’t know what lies at the bottom
The deepest blue hole in the world has reportedly been found. However, scientists have no idea what lies at the bottom of it, ...
The deepest blue hole in the world lies just off the coast of Mexico and scientists have been left perplexed. This underwater marine sinkhole is over 420 metres deep and explorers are still unable to ...
So-called “blue holes” are naturally formed cavities on the sea floor with vertical walls, mostly found in coastal regions ...
The Taam ja’ is blue hole is still defined by what we don’t know. We can say it’s deeper than 1,390 feet, and the bottom hasn’t been found.
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